/*
 * Copyright (C) 2021 Huawei Device Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.a1anwang.okble.demo.utils;

/**
 * TextUtilsEx  自定义类
 *
 * @since 2021-05-14
 */
public class TextUtilsEx {
    /**
     * 判断是否为空
     *
     * @param str 值
     * @return boolean
     */
    public static boolean isEmpty(CharSequence str) {
        return str == null || str.length() == 0;
    }

    /**
     * isDigitsOnly
     *
     * @param str 值
     * @return boolean
     */
    public static boolean isDigitsOnly(CharSequence str) {
        final int len = str.length();
        for (int cp, i = 0; i < len; i += Character.charCount(cp)) {
            cp = Character.codePointAt(str, i);
            if (!Character.isDigit(cp)) {
                return false;
            }
        }
        return true;
    }
}
